Open Access

Table 1

Relative variations of Na vertical column density for each year compared to the global dataset mean (left values) and to their yearly mean (right values).

Year Max positive relative var. Max negative relative var. Yearly total var.
2018 72%/52% −27%/−35% 99%/85%
2019 31%/38% −32%/−39% 63%/77%
2021 25%/45% −36%/−25% 61%/70%
2022 56%/52% −41%/−43% 97%/94%
2023 62%/63% −46%/−46% 108%/109%

Notes. The yearly total variation corresponds to the maximum positive variation minus the maximum negative one.

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